31043430112200 has 192 divisors, whose sum is σ = 105043575798720. Its totient is φ = 7521354624000.

The previous prime is 31043430112127. The next prime is 31043430112207. The reversal of 31043430112200 is 221103434013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31043430112207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10139782 + ... + 12841418.

It is an arithmetic number, because the mean of its divisors is an integer number (547101957285).

Almost surely, 2^{31043430112200} is an apocalyptic number.

31043430112200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31043430112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52521787899360).

31043430112200 is an abundant number, since it is smaller than the sum of its proper divisors (74000145686520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31043430112200 is a wasteful number, since it uses less digits than its factorization.

31043430112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703408 (or 2703399 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31043430112200 its reverse (221103434013), we get a palindrome (31264533546213).

The spelling of 31043430112200 in words is "thirty-one trillion, forty-three billion, four hundred thirty million, one hundred twelve thousand, two hundred".